Home / 145,173.50-200,357.16-91,457.62

Finding the Fourth Proportional to 145,173.50, 200,357.16 and 91,457.62

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Solution

The fourth proportional to 145,173.50, 200,357.16 and 91,457.62 is: 126,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,173.50 : 200,357.16 = 91,457.62 : x
  2. Step 2: Convert to fraction form
    145,173.50/200,357.16 = 91,457.62/x
  3. Step 3: Cross multiply
    145,173.50x = 200,357.16 × 91,457.62
  4. Step 4: Simplify right side
    145,173.50x = 18,324,189,003.56
  5. Step 5: Solve for x
    x = 18,324,189,003.56/145,173.50
  6. Step 6: Final answer
    x = 126,222.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.